1/* 2 * Copyright (C) 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 * PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17/* $Id: refcount.c,v 1.5 2007/06/19 23:47:17 tbox Exp $ */ 18 19#include <config.h> 20 21#include <stddef.h> 22 23#include <isc/mutex.h> 24#include <isc/refcount.h> 25#include <isc/result.h> 26 27isc_result_t 28isc_refcount_init(isc_refcount_t *ref, unsigned int n) { 29 REQUIRE(ref != NULL); 30 31 ref->refs = n; 32#if defined(ISC_PLATFORM_USETHREADS) && !defined(ISC_PLATFORM_HAVEXADD) 33 return (isc_mutex_init(&ref->lock)); 34#else 35 return (ISC_R_SUCCESS); 36#endif 37} 38